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Currents and coupling losses distribution in superconducting cables carrying transport current

机译:载运电流的超导电缆中的电流和耦合损耗分布

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摘要

The distribution of transport and induced currents in superconducting wires and flowing between the wires of a multiwire transposed cable is examined. Theoretical dependences for low-level excitation conditions are described. It is shown that the distribution of currents flowing between separate wires as well as the distribution of coupling losses is determined by two components, one of which attains a maximum at the end of the cable, while the other one becomes maximum at the cable's axis. The correlation of components and its dependence on the cable's design is determined. It has been found that at low excitation level the transport current has virtually no influence on the distribution of currents flowing between separate wires; hence, its influence on coupling losses is also negligible. Results of numerical analyses for the extracritical external field change rates and different transport currents are shown.
机译:检查了多导线换位电缆中超导线中以及在导线之间流动的传输电流和感应电流的分布。描述了对低水平激励条件的理论依赖性。结果表明,在两根导线之间流动的电流分布以及耦合损耗的分布由两个分量决定,其中一个分量在电缆的末端达到最大值,而另一个分量在电缆的轴上达到最大值。确定组件的相关性及其对电缆设计的依赖性。已经发现,在低激励水平下,传输电流实际上对在分开的导线之间流动的电流的分布没有影响。因此,它对耦合损耗的影响也可以忽略不计。显示了超临界外部场变化率和不同传输电流的数值分析结果。

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